Hello, i’m creating my little 3d game, and now I need to animate my characters.I use only obj format but I don’t know how to read animation info. I’d need some codes or articles or tutorials about key frame animation(with linear interpolation) using obj format, someone can help me? thanks!

I don’t think the obj format stores animation data, it isn’t mentioned in the file format specification. Is there any possibility you could use a different format. provides examples of loading/animating md2, md3 and 3ds files.